EFFECTS OF RAPESEED DOCKAGE CONTENT ON THE FEEDING VALUE OF RAPESEED MEAL FOR SWINE

1980 ◽  
Vol 60 (4) ◽  
pp. 953-960 ◽  
Author(s):  
J. M. BELL ◽  
A. SHIRES

Five lots of fine rapeseed screenings were obtained from crushing plants, extracted in a pilot crushing plant, subjected to botanical analysis, and assayed for mycotoxins, protein, ether extract, ash, crude fibre, sand, amino acids, combustible energy and glucosinolates. Each screenings meal was substituted for 4, 8 and 12% of clean Tower rapeseed meal, incorporated into diets, pelleted and fed to swine over a weight range of 23–88 kg. The main finding in the feeding trial was a decline in efficiency of feed utilization as the level of screenings increased. Digestibility trials were conducted on the 12% screenings diets. Two of the screenings lots depressed protein digestibility from 78 to 73% and four of the screenings samples depressed energy digestibility. The lysine content of screenings tended to be lower than for Tower rapeseed meal and this, together with the lower protein digestibility, suggests that available lysine might be adversely affected by the inclusion of screenings in rapeseed meal. It therefore is nutritionally advantageous to ensure that rapeseed is relatively free of foreign matter prior to crushing.

2020 ◽  
Vol 46 (5) ◽  
Author(s):  
A.W. Ajetunmobi ◽  
S. A. Eguaoje ◽  
C. A. Adeniji ◽  
M. T. Omesa ◽  
A. Iwegbu

A ten-week feeding trial was conducted to evaluate the apparent nutrient digestibility of 120, one-day old broiler starter chicks fed varying levels of Parboiled sundried taro cocoyam (Colocasia esculenta) meal (PSCM). Four treatments were formulated with diet one containing 100% maize as control, while in diet two, three and four parboiled sundried cocoyam meal (PSCM) replaced the percentage proportion of maize in diet one at 50, 75 and 100% inclusion levels respectively. Thirty (30) birds were randomly assigned to the four treatment diets in a complete randomized designed (CRD) and each treatment group contained three replicates with ten (10) birds each. Ground fed feed and voided faecal samples collected after a 4-day feeding in a metabolic cage were analyzed for their respective proximate constituent. Apparent nutrient digestibility revealed that crude fibre was significantly (P<0.05) higher in diet 4 while crude ash was significantly (P<0.05) higher in control. Digestible ether extract and NFE were significantly (P<0.05) higher among birds placed on 50% PSCM. It is therefore concluded that parboiled sundried taro cocoyam meal (PSCM) could replace 50% of maize in broiler starter diet without any deleterious effect. However, substituting maize with parboiled sundried taro cocoyam meal at 50% replacement level improved nutrient digestibility and is hereby recommended for poultry farmers.


2019 ◽  
Vol 38 (04) ◽  
Author(s):  
Diksha Dogra

Buckwheat is economically important smaller millet grown primarily for carbohydrates and protein content. In this study, biochemical composition of 14 promising genotypes of buckwheat grown in Sangla region of Himachal Pradesh were analysed. The grain weight, moisture content, crude protein, total soluble protein, crude fat (ether extract), ash, crude fibre, carbohydrates, methionine, tryptophan, in vitro protein digestibility and oxalate in genotypes ranged from 18.8 to 26.8g, 10.2 to 10.9%,10.4 to 15.1%,9.4 to 13.3%,1.7 to 2.8%,1.49 to 2.45%,6.1 to 9.2 %,62.0 to 67.9%,57.9 to 103.4 mg/gN,62.2 to 79.2 mg/gN,66.7 to 79.5% and 98 to 152mg/100g, in that order. Based on cumulative grading of nutritionally desirable qualities, the genotypes VL-27 and PRB-9001 followed by S-B-201 proved superior cultivars.


1982 ◽  
Vol 62 (3) ◽  
pp. 915-918
Author(s):  
Y. K. GOH ◽  
A. SHIRES ◽  
A. R. ROBBLEE ◽  
D. R. CLANDININ

The effects of sparging low glucosinolate-type rapeseed meal (Canola meal) with ammonia, in the absence or presence of steam, on its amino acid composition and feeding value for chicks were studied. Sparging treatments had no effects on the amino acid contents of the meals nor were thyroid size or the growth of chicks affected adversely when the variously treated meals were included in diets for chicks at the 20% level. Sparging with steam appeared to increase the available lysine content of the meal and improve its feeding value for chicks. Key words: Canola meal, ammoniation, sinapine, nutritive value, chicks


2021 ◽  
Vol 25 (1) ◽  
pp. 40-45
Author(s):  
E. A. IYAYI ◽  
J. I. EGHAREVBA

The effect of heat treatment and germination on the proximate and mineral composition, HCH, tannins, phytic acid and the in vitro protein digestibility of Mucuna utilis seeds were studied. The raw seeds had a protein content of 35.4%, 7.7% crude fibre, 3.2% ether extract, 5.8% ash and 47.9% carbohydrates on a dry matter basis. The germinated and dehulled seeds had 40.5% crude protein 2.2% crude fibre, 3.4% ether extract, 7.0% ash 47.0% carbohydrates, while the heat -treated seeds had 34.4% crude protein, 11.9% crude fibre, 3.3% ether extract, 9.4% ash and 41.1% carbohydrates. Potassium and iron were the most abundant minerals while the least were sodium and copper. Germination caused a reduction in the levels of all minerals while heat treatment also caused a reduction in the levels of the minerals but with exception of Ca, Mg and Zn. Processing caused a reduction in all the levels of anti-nutritional factors assayed. The in-vitro protein digestibility of the raw seeds was 89.4%; 91.7% for the heat-treated seeds and 76.0% for the germinated seeds.


Author(s):  
Vojtěch Rada ◽  
Martina Lichovníková ◽  
Marian Foltyn ◽  
Ivo Šafařík

The objective of this study was to evaluate the effect of a mono-component commercial serine protease supplement in broiler diets on apparent ileal amino acid digestibility and protease activity. A total of 150 male (28 d old) ROSS 308 were randomly placed into 30 battery pens and divided into 5 treatment groups with 6 replicates each. The experiment was performed for 7 days. Five dietary treatments were used: 2 standard protein diets without (SP) and with protease (SP + P) formulated 20.7 % CP, 2 lower-protein diets (19.9 % CP) without (LP) and with protease (LP + P) and one lower‑protein diet with protease and with doubled rapeseed meal (RSM) content (SP-RSM + P) compared with the other treatments. Lower-protein diets were formulated with a 4 % decrease in the relative CP value compared with the standard protein diet. Enzyme protease was added to the diets at a concentration of 200 ppm (15,000 PROT units per kg). The diets contained 0.3 % Cr2O3 to facilitate the estimation of apparent AA digestibility and overall apparent ileal crude protein digestibility. Mono-component protease had no effect on apparent ileal AA digestibility or jejunum protease activity if diets contained the same level of RSM. The supplement of exogenous protease did not affect (P > 0.05) the apparent ileal AA digestibility coefficients if a higher RSM level was used. The CP level influenced (P < 0.05) only the coefficients of the apparent ileal AA digestibility of Pro and Arg. The RSM level (P < 0.01) had significant effects on protease activity in the jejunum.


2005 ◽  
Vol 2005 ◽  
pp. 76-76
Author(s):  
C. Rymer ◽  
D. I. Givens

Rapeseed meal (RSM) is the richest source of commercially available home grown protein in the UK, but its inclusion in livestock diets is approximately half that of soyabean meal (SBM, DEFRA, 2004). RSM has a lower protein and available lysine content than SBM but increased nutrient digestibility was observed when pigs were fed RSM supplemented with non-starch polysaccharide degrading enzymes (Hoare et al., 2003). The objective of this experiment was to determine the effect of adding different amounts of a cell wall degrading enzyme on the available amino acid content of RSM as estimated in poultry.


1976 ◽  
Vol 56 (4) ◽  
pp. 809-816 ◽  
Author(s):  
J. M. BELL ◽  
T. F. SHARBY ◽  
G. SARWAR

Rapeseed meals (RSM), B. campestris L. (cv. Span), derived from a pooled seed source processed in three different Canadian pre-press solvent-extraction processing plants were compared with RSM derived from B. campestris Canadian seed and a B. napus RSM derived from European seed, the latter two meals being processed in The Netherlands. Amino acid, glucosinolate and proximate analyses were conducted. Feeding experiments with mice revealed no differences in weight gains, feed intakes, digestibility of energy or protein, efficiency of feed utilization or protein quality among the three samples of Canadian-processed Span RSM, and the responses equalled those obtained with soybean meal. RSM processed in The Netherlands and derived from Canadian seed equalled the Canadian-processed Span RSM except for a significantly (P = 0.05) lower digestibility of protein. The Netherlands-processed B. napus RSM proved to be inferior and resulted in slower growth and lower protein digestibility. Swine fed the same five RSM samples in typical swine rations but at lower levels of RSM (7.5 and 15.0%) than those (9.1 and 10.1; 19.9 and 22.5; and 30.9 and 34.9%) in the mouse tests showed a reduction in daily gain (P = 0.05) for 15% RSM compared to 7.5% and a tendency for the B. napus RSM from The Netherlands to be inferior (P > 0.05). It is suggested that differences in myrosinase inactivation during processing, the higher oxazolidinethione content characteristic of B. napus RSM, and possible overheating during the toasting phase of RSM production were responsible for the differences observed.


1982 ◽  
Vol 62 (2) ◽  
pp. 547-555 ◽  
Author(s):  
M. O. KEITH ◽  
J. M. BELL

Commercial No. 1 Candle rapeseed (canola) (Brassica campestris) was prepress solvent extracted and heated to 105 °C at the desolventizing step (control meal). Samples of the canola (low glucosinolate) meal were also treated with ammonia or steam or both at the desolventizing step. The meals were analyzed chemically and subsequently fed to 70 growing pigs in a factorial experiment. Digestibility of the meals was determined separately. Ammoniation increased the crude protein (% N × 6.25) concentration from 39 to 42%, decreased the proportion of alkaline soluble nitrogen and increased the available lysine level. Both ammonia and steam reduced glucosinolate concentrations but usually at least half the glucosinolates remained after any treatment. Compared with a soybean meal control diet, diets containing 10% treated canola meals did not affect daily gains, feed intakes or feed:gain ratios when fed to pigs. Ammoniation had little effect on crude protein digestibility of canola meal but, in combination with steam, reduced the energy digestibility. Based on these results, there appeared to be no advantage in ammoniating canola meal as a means of improving its nutritional quality in swine diets. Key words: Rapeseed meal, low glucosinolate, ammoniation, nutritional quality, composition, pigs


1976 ◽  
Vol 56 (2) ◽  
pp. 269-273 ◽  
Author(s):  
J. M. BELL ◽  
H. F. JEFFERS

Samples (115) of rapeseed meal were collected from feedmills and crushing plants across Canada during July–December 1972. The samples averaged 7.7% moisture, 35.9% crude protein, 11.2% crude fibre, 3.8% ether extract, 6.5% ash and 7.0 mg glucosinolates per gram. By microscopy, 86% of the samples averaged 1.8% total impurities; 14% averaged 4.5% impurities or material other than rapeseed. These findings are discussed in relation to rapeseed grading standards and in relation to normal variation in rapeseed meal quality.


1963 ◽  
Vol 20 (1) ◽  
pp. 229-238 ◽  
Author(s):  
B. E. March ◽  
J. Biely ◽  
H. L. A. Tarr

Six composite samples of British Columbia whole herring meals representative of the 1960–1961 commercial production were analyzed for protein, fat (ether extract), ash, water, minerals, vitamins of the "B complex", available lysine, 13 amino acids and protein digestibility. The biological availability of the protein was also checked by determining the supplementary protein value for chicks. The results, which are tabulated and discussed, indicate that the herring meals were of comparatively consistent composition and of high nutritional value.


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